As exact management of cabin airflow and temperature turns into extra crucial in autos to reinforce passenger consolation in addition to to assist superior thermal administration techniques, Melexis introduces the MLX81350 LIN motor driver for air con (AC) flaps and automatic air vents in electrical autos (EVs). The MLX81350 delivers a balanced mixture of efficiency, system integration, and price effectivity to satisfy these necessities.
The fourth-generation automotive LIN motor driver, constructed on high-voltage silicon-on-insulator know-how, delivers as much as 5 W (0.5 A) per motor and offers quiet and environment friendly motor operation for air con flap motors and digital air vents.
Along with flash programmability, Melexis stated the MLX81350 presents excessive robustness and performance density whereas decreasing bill-of-materials complexity. It integrates each analog and digital circuitry, offering a single-chip resolution that’s totally compliant with industry-standard LIN 2.x/SAE J2602 and ISO 17987-4 specs for LIN slave nodes.
The MLX81350 contains a new software program structure that enhances efficiency and effectivity over the earlier era. This enhancement consists of improved stall detection and the addition of sensorless, closed-loop field-oriented management. This permits smoother motor operation, decrease present consumption, and decreased acoustic noise to raised assist automotive HVAC and thermal administration purposes, Melexis stated.
Nevertheless, the MLX81350 nonetheless maintains pin-to-pin compatibility with its predecessors for simpler migration with present designs.
The LIN motor driver presents a lot of peripherals to assist superior motor management and system integration, together with a configurable RC clock (24-40 MHz), 4 general-purpose I/Os (digital and analog), one high-voltage enter, 5× 16-bit motor PWM timers, two 16-bit basic timers, and a 13-bit ADC with <1.2 -µs conversion time throughout a number of channels, in addition to UART, SPI, and I²C grasp or slave interfaces. The LIN interface permits seamless communication inside car networks, and offers built-in safety and diagnostic options, together with over-current, over-voltage, and temperature shutdown, to make sure protected and dependable operation in demanding automotive environments.
The MLX81350 is designed based on ASIL B (ISO 26262) and presents versatile wake-up choices through LIN, exterior pins, or an inner wake-up timer. Different options embrace a low standby present consumption (25 µA typ.; 50 µA max.) and inner voltage regulators that permit direct powering from the 12-V battery, supporting an working voltage vary of 5.5 V to twenty-eight V.
The MLX81350 is obtainable now. The automotive LIN motor driver is obtainable in SO-8 EP and QFN-24 packages.
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